He looks so big for 5 months. He also looks very comfortable on your bed. My Kona will be 7 months soon and jumped for joy the other day when she found out about the bed.
He looks so much like Gunnar! Little different in the facial markings but otherwise they could be twins! What a gorgeous boy he is. About how much does he weigh now? What was his B-day?
That is a good-looking dog! I love it when GSDs are still growing into their ears! He's growing from a cute puppy to a handsome dog, you have a lot to be proud of.